linux-kernel - Re: [PATCH] xen: add missing MODULE

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Date: Wed, 26 Jun 2024 09:46:41 -0700
From: Jeff Johnson <quic_jjohnson@...cinc.com>
To: Juergen Gross <jgross@...e.com>,
        Stefano Stabellini
	<sstabellini@...nel.org>,
        Oleksandr Tyshchenko
	<oleksandr_tyshchenko@...m.com>
CC: <xen-devel@...ts.xenproject.org>, <linux-kernel@...r.kernel.org>,
        <kernel-janitors@...r.kernel.org>
Subject: Re: [PATCH] xen: add missing MODULE_DESCRIPTION() macros

On 6/11/2024 4:54 PM, Jeff Johnson wrote:
> With ARCH=x86, make allmodconfig && make W=1 C=1 reports:
> WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/xen/xen-pciback/xen-pciback.o
> WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/xen/xen-evtchn.o
> WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/xen/xen-privcmd.o
> 
> Add the missing invocations of the MODULE_DESCRIPTION() macro.
> 
> Signed-off-by: Jeff Johnson <quic_jjohnson@...cinc.com>
> ---
> Corrections to these descriptions are welcomed. I'm not an expert in
> this code so in most cases I've taken these descriptions directly from
> code comments, Kconfig descriptions, or git logs.  History has shown
> that in some cases these are originally wrong due to cut-n-paste
> errors, and in other cases the drivers have evolved such that the
> original information is no longer accurate.
> ---
>  drivers/xen/evtchn.c               | 1 +
>  drivers/xen/privcmd-buf.c          | 1 +
>  drivers/xen/privcmd.c              | 1 +
>  drivers/xen/xen-pciback/pci_stub.c | 1 +
>  4 files changed, 4 insertions(+)
> 
> diff --git a/drivers/xen/evtchn.c b/drivers/xen/evtchn.c
> index f6a2216c2c87..9b7fcc7dbb38 100644
> --- a/drivers/xen/evtchn.c
> +++ b/drivers/xen/evtchn.c
> @@ -729,4 +729,5 @@ static void __exit evtchn_cleanup(void)
>  module_init(evtchn_init);
>  module_exit(evtchn_cleanup);
>  
> +MODULE_DESCRIPTION("Xen /dev/xen/evtchn device driver");
>  MODULE_LICENSE("GPL");
> diff --git a/drivers/xen/privcmd-buf.c b/drivers/xen/privcmd-buf.c
> index 2fa10ca5be14..0f0dad427d7e 100644
> --- a/drivers/xen/privcmd-buf.c
> +++ b/drivers/xen/privcmd-buf.c
> @@ -19,6 +19,7 @@
>  
>  #include "privcmd.h"
>  
> +MODULE_DESCRIPTION("Xen Mmap of hypercall buffers");
>  MODULE_LICENSE("GPL");
>  
>  struct privcmd_buf_private {
> diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c
> index 67dfa4778864..b9b784633c01 100644
> --- a/drivers/xen/privcmd.c
> +++ b/drivers/xen/privcmd.c
> @@ -48,6 +48,7 @@
>  
>  #include "privcmd.h"
>  
> +MODULE_DESCRIPTION("Xen hypercall passthrough driver");
>  MODULE_LICENSE("GPL");
>  
>  #define PRIV_VMA_LOCKED ((void *)1)
> diff --git a/drivers/xen/xen-pciback/pci_stub.c b/drivers/xen/xen-pciback/pci_stub.c
> index e34b623e4b41..4faebbb84999 100644
> --- a/drivers/xen/xen-pciback/pci_stub.c
> +++ b/drivers/xen/xen-pciback/pci_stub.c
> @@ -1708,5 +1708,6 @@ static void __exit xen_pcibk_cleanup(void)
>  module_init(xen_pcibk_init);
>  module_exit(xen_pcibk_cleanup);
>  
> +MODULE_DESCRIPTION("Xen PCI-device stub driver");
>  MODULE_LICENSE("Dual BSD/GPL");
>  MODULE_ALIAS("xen-backend:pci");
> 
> ---
> base-commit: 83a7eefedc9b56fe7bfeff13b6c7356688ffa670
> change-id: 20240611-md-drivers-xen-522fc8e7ef08
> 

Following up to see if anything else is needed from me. Hoping to see this in
linux-next so I can remove it from my tracking spreadsheet :)

/jeff